Which heart structure is characteristic of the Class Amphibia?
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Correct answer: Three-chambered heart (two atria, one ventricle)
Amphibians possess a three-chambered heart with two atria that receive blood from the body and lungs, and a single ventricle where some mixing of oxygenated and deoxygenated blood occurs.
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More Chordata: Protochordata to Amphibia questions
- Amphibians are often described as having 'double respiration.' Which two surfaces are primarily used for gas exchange in most adult frogs?
- The Order Apoda (Caecilians) in Class Amphibia is characterized by which physical feature?
- What is the function of the 'lateral line system' found in both fish and aquatic amphibian larvae?
- Which of the following is an example of 'Neoteny' (paedomorphosis) found in some amphibians?
- In fish, the 'conus arteriosus' or 'bulbus arteriosus' is a part of which system?
- Which membrane in the amphibian ear is responsible for receiving sound vibrations from the environment?